Compute Overhead Application Rate and Variances

55. Corinne's Country Rockers uses flexible budgeting. The company's budget for variable overhead is $24,000 and for fixed overhead is $15,000. When Corinne's analyzes this overhead using activity-based costing, the budgeted overhead of $39,000 is traced to six activities: materials handling, machinery setup, assembly, finishing, maintenance, and inspections. The costs associated with each activity and their respective cost drivers are as follows:

A. Compute the overhead application rate for each activity. Put your answer in the format of an activity-based costing flexible budget.
B. Using the actual volume and cost, compute the spending variance, the efficiency variance, and the total variance for each activity.